Journal Article

PreJuSER-45856

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Excitation functions of spin correlation parameters ANN, ASS, and ASL in elastic pol.p pol.p scattering between 0.45 and 2.5 GeV

Bauer, F. ; Bisplinghoff, J. ; Büsser, K. ; Busch, M. ; Colberg, T. ; Dahl, C. ; Demirörs, L. ; Eversheim, P. D. ; Eyser, K. O. ; Felden, J. M.FZJ* ; Gebel, R.FZJ* ; Greiff, J. ; Hinterberger, F. ; Jonas, E. ; Krause, H. ; Lehmann, C. ; Lindlein, J. ; Maier, R.FZJ* ; Meinerzhagen, A. ; Pauly, C. ; Prasuhn, D.FZJ* ; Rohdjess, H. ; Rosendaal, D. ; Rossen, P.FZJ* ; Schirm, N. ; Scobel, W. ; Ulbrich, K. ; Weise, E. ; Wolf, T. ; Ziegler, R.

2005
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/1666  doi:10.1103/PhysRevC.71.054002

Abstract: Excitation functions of the spin correlation coefficients A(NN)(p(lab),theta(c.m.)),A(SS)(p(lab),theta(c.m.)), and A(SL)(p(lab),theta(c.m.)) have been measured with the polarized proton beam of the Cooler Synchrotron and an internal polarized atomic beam target. Data were taken continuously during the acceleration for proton momenta p(lab) ranging from 1000 to 3300 MeV/c (kinetic energies T-lab 450-2500 MeV) as well as for discrete momenta of 1430 MeV/c and above 1950 MeV/c covering angles theta(c.m.) between 30(degrees) and 90(degrees). The data are of high internal consistency. Whereas A(SL)(p(lab,)theta(c.m.)) is small and without structures in the whole range, A(NN) and, even more, A(SS) show a pronounced energy dependence. The angular distributions for A(SS) are at variance with predictions of existing phase-shift analyses at energies beyond 800 MeV. The impact of our results on phase-shift solutions is discussed. The direct reconstruction of the scattering amplitudes from all available pp elastic scattering data considerably reduces the ambiguities of solutions.

Keyword(s): p p: elastic scattering ; p: polarized beam ; hydrogen: polarized target ; spin: correlation ; momentum dependence ; angular dependence ; partial wave analysis ; p p: scattering amplitude ; scintillation counter: experimental results ; Juelich COSY PS ; 0.45-2.50 GeV-kin

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Kernphysikalische Großgeräte (IKP-GG)

Research Program(s):

1. Betrieb und Weiterentwicklung des Kühler-Synchrotrons COSY (M04)

Appears in the scientific report 2005
Notes: This version is available at the following Publisher URL: http://prc.aps.org

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